Help with my numbers (lbs, cal, workout)

So I'll try to make this short and sweet. I started MFP and fitbit on March 1st and as of June 1st I dropped 62 lbs and just totally rocked it! Now, I cant seem to cut anymore weight. I'm 31, 6' tall, and between 245 and 250lbs......and by MFP recommendations I'm trying to stay at the 2400cal it suggests. Ive increased my activity levels as my weight dropped and cut my calories accordingly til now. So I work as a service technician at a local college so I'm always moving but in addition. I park a mile away so here's my daily activity. I hike a mile to work via trails. At 9am I do an uphill sprint/jog combo usually about 1500 to 2000 steps. After I cram lunch I hike a local mountain which is about 2.5 miles and a steep grade. Then after work I do the 1 mile hike to the car, and I do about 3 hrs of mixed cardio, calisthenics, and weight training once I'm home. I usually end the day at about 25k plus steps.

My diet is loose for food choice but tight on the calories. I do a morning protein shake with a whole wheat peanut butter sandwich. A can of tuna with mustard and pepper for a morning snack with a banana. Another can of tuna and a banana and a diet soda for lunch, and usually a good dinner which varies between 600 to 800 calories. Basically now that I've hit this plateau I'm wondering if the exercise deductions on MFP may be close. Usually my exercise deductions are more than my daily caloric intake, but if I'm not hungry I don't want to force feed. Lastly, my #2 breaks are VERY infrequent. Which I think may be attributed to not eating enough maybe?

Any help would be very much appreciated. Fyi, my meals do vary. What I listed was just an example.....I dont eat the same stuff everyday. Thanks